Senior FullStack Developer - Remote

Description

At Valid, we work to enable secure identification of people, journeys, and transactions—both in the public and private sectors. Our physical and digital solutions are dedicated to three major ecosystems: * **Identification & Digital Government** * **Banks & Payment Methods** * **Secure Connectivity** Our role is to authenticate, authorize, and ensure the security of all involved parties. This is what we deliver for each of our 1,200+ clients across Brazil and worldwide. **Our Valid Way** At Valid, we believe every person is unique, and our purpose is to empower the most authentic qualities within each individual—creating an environment where everyone can grow and leave their mark. We value professionals who build trust-based relationships with external customers, partners, and other internal teams; who focus on improving existing solutions or creating new ones; who pursue excellence in delivery; and who practice teamwork and collaboration. All this reflects our Culture—the Valid Way—which is embodied in our four core values: * ***Customer-Driven*** * ***Never Stop Evolving and Learning*** * ***Make It Happen—and Do It Right*** * ***Play Together and Play Fair*** This enables us to continue building a story of success and growth—and brings our purpose to life every day. Here at Valid, we value equal opportunity and are committed to building a safe, respectful, and inclusive environment for all people. We do not discriminate based on race, religion, color, nationality, gender, sexual orientation, disability, or any other basis. **Responsibilities and Duties** * Develop **end-to-end** solutions (back-end, front-end, and mobile) * Design, develop, and maintain scalable, high-performance applications * Define architectures and development best practices * Conduct code reviews and mentor junior developers * Collaborate closely with product, design, and infrastructure teams * Ensure code quality, automated testing, and CI/CD best practices * Actively participate in technical decisions and stack evolution **Requirements and Qualifications** **Technical Requirements** * Completed undergraduate degree * Proficiency in the following technologies: * **Back-end:** Java, Kotlin, .NET, Node.js * **Front-end:** React, Next.js * **Mobile:** Flutter, Swift, Kotlin, and React Native * Experience building APIs * Knowledge of system architecture * Experience with relational and non-relational databases * Familiarity with version control (Git, Bitbucket) * Experience with DevOps practices (CI/CD, containers, cloud) **Preferred Qualifications** * Cloud experience * Messaging systems knowledge * Experience with automated testing (unit, integration, end-to-end) * Agile methodology experience (Scrum/Kanban) * Experience with large-scale systems **Additional Information** Health and Hospital Insurance Dental Insurance Ifood Benefits Wellhub Transportation Allowance Childcare Assistance Profit Sharing Program (PLR) Life Insurance Remote Work Model Day Off **So, What Exactly Is Valid?** We are a solutions integrator specializing in secure identification of people, journeys, and transactions. Our solutions—physical and digital—are dedicated to three major ecosystems: ID & Digital Government, Banking & Payments, and Secure Mobility. We are the market leader in civil identification in Brazil, one of the world’s top producers of financial cards, and the fifth-largest global provider of SIM Cards for the mobile market. For over six decades, we’ve innovated daily to empower each person’s authenticity and simplify the lives of millions. **We Are Driven by Big Challenges** We aren’t afraid to make mistakes while pursuing the best solutions to simplify life for our customers—and for our customers’ customers. Whenever a solution is complex, high-volume, and involves sensitive data, you can be certain Valid is behind it. Did you know Valid is already part of your daily life in this way? **Learn More About Our Impact** **Valid handles the physical, digital, and figital documentation of Brazilians** We issue over 250 million documents—including the **RG** (Brazilian ID card) and the **CNH** (Brazilian driver’s license)—which are evolving into digital applications that, alongside their physical versions, are now in the hands of thousands of Brazilian citizens. **Valid enables connectivity for millions of people worldwide** Nearly one billion mobile devices are connected to the internet via **SIM Cards** and **eSIMs** produced and orchestrated by Valid. **Valid processes transactions originating from multiple locations and devices** Every day, over 700 million transactions, payments, and queries are processed through Valid’s security solutions embedded in credit cards, invoices, and statements.